Transverse Section DefinitionĪ transverse section is a cross-sectional part that is achieved by cutting the body or any part of the body structure in real or with help of imaging techniques in a horizontal plane. It proves helpful in understanding the mechanism of muscle action and movement i.e. The longitudinal section of skeletal muscle explains the organization and pattern of muscle fibers. The dissection at the longitudinal section will help in understanding the cellular and tissue level organization of an organism. When the internal anatomical structures are compared with the fossil evidence, it helps to gain knowledge about evolutionary history. Longitudinal section study also proves very helpful in the study of evolution. The nervous and digestive systems of elongated animals like snakes and worms can be studied easily through the longitudinal section. They are cut into different planes or sections accordingly for detailed view and research.įor a better understanding of structures and their physiology, the longitudinal view proves very useful and helpful. So the dissection is done on dead bodies. It is not possible to dissect the living animal or human transversely or longitudinally. The reason for the importance of the transverse and longitudinal planes is that they help to study the hidden organs and tissues of the body more openly and clearly. In the study of anatomical structures of plants and animals, the transverse and longitudinal sections are very important. Image Credit: David Richfield and Mikael Häggström, M.D. Legend: Longitudinal plane, Parasagittal plane, Frontal or Coronal plane, and Transverse or Axial plane. The plane that runs vertically is the longitudinal plane. It is also known as the horizontal plane.įigure 1: The different anatomical planes of the human body: coronal plane, transverse plane, and sagittal plane. Transverse Section: This plane divides the body into cranial and caudal parts, which means head and tail portion.It is also referred to as the frontal or coronal plane and it shows the coronal view. Coronal Section: This plane divides the body into dorsal and ventral or anterior-posterior parts.It is also named an anteroposterior or longitudinal plane. It splits the body to the right and left. Longitudinal section: This plane is parallel to the sagittal suture.
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